I guess I would consider it closest to Zeam. Very quick, clean, lightweight. There are some resizing you can do to widgets, 7 pages, 5 docks, app drawer layouts. We have a "launcher of choice" section over at the Skyrocket forum, and I just put in yesterday that I like Launcher 7. It's zippy, very clean looking, there are plenty of modifications you can do to it.
Amazing catch phrase here.